Rkpx3 Mcu Update
While the UART method above is universal, advanced users can use:
Download the correct MCU firmware (usually provided by the manufacturer or found on enthusiast forums like XDA Developers or 4PDA ) and place the .img or .bin file directly on the root of the USB drive. Start the Update: Plug the USB into the head unit's primary USB port. rkpx3 mcu update

